Improvement in hydraulic heaters



w. H. CHURCHMAN.

Steam Heater;

No. 10.855. Patented MayQ, 1854.

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UNITED STATES PATENT OFFICE.

XVILLIAM I-I. OHUROHMAN, OF PHILADELPHIA, PENNSYLVANIA.

IMPROVEMENT IN HYDRAULIC HEATERS.

Specification forming part of Letters Patent No. 10,855, dated May 2, 1854.

To all whom it may concern:

Be it known that 1, WILLIAM H. Cannon MAN, of Philadelphia, in the county of Philadel phia and State of Pennsylvania, have invented a new and Improved Hydraulic Heater for Warming and Ventilating Every Description of Buildings; and I do hereby declare that the following is a full, clear, and exact description of the construction and operation of the same, reference being had to the accompanying drawings, and to the letters of water circulation; and it consists, mainly, of

a boiler for heating the water and aquantity of tubing for its circulation, both acting as radiating media, and the Whole beiuginclosed in an air-chamberafter the manner of the ordinary hot-air furnace.

Figure 1 of the aforementioned drawings represents a front view of the heater when completed ready for inclosing in the air-chamber; Fig. 2, a side View of the same, and Fig. 3 a plan view, the same letters referring in all. cases to like parts.

A is the boiler in which the water is heated.

B is the furnace or fire-box inclosed within the boiler and nearly surrounded by water.

0 is the feed-door to the furnace.

D is the door to the ash-pit below the grate.

E is the grate of the furnace.

F is a funnel for collecting and carrying off the smoke and gases.

G is the radiating-tubes, through which the water flows from and returns to the boiler.

H is the return-boxes connecting the tubes.

I is a box through which the water is supplied to the heater.

J is the supply-pipe.

K is the feed-pipe connecting the box wit the boiler.

L'is a float and valve for regulating the supply of water after the manner of a ballcock.

M is a safety-pipe for discharging air during the filling of the heater, and also for the escape of steam if any should be generated by overheating.

The entire heater is made of cast-iron, but may be constructed of any other appropriate metal. The several parts may be joined together by any of the ordinary methods employed by machinists in like cases.

Its operation is similar to that of any other hydraulic heater, and its application like that of most heaters in general usethat is, the atmosphere introduced into the air-chamber becomes warmed and rarefied by contact with the heater, and thence passes through appropriate ducts or flues into the apartments to be warmed and ventilated.

By a comparison of the one herein de scribed with all other hydraulic heaters heretofore constructed it will be seen in the case of the latter that whenever more than two radiating-tubes are employed they are connected together by manifolds or gang-pipes, alllld these joined to the boiler by single pipes, t us i H II H I] [I ll whereas in the former all of the pipes are connected directly to the boiler without the intervention of said manifolds or gang-pipes, thereby promoting a much freer and quicker circulation of the water, which circumstance materially enhances the efficacy of a given amount of radiating-surface.

hat I claim, therefore, as, original in the construction of hydraulic heaters, and wish to secure by Letters Patent, is-

The attachment of all of the radiating or circulating tubes in one or more series of rows directly to the boiler or main receptacle for water, together with any and all equivalents thereof.

Philadelphia, December 12, 1853.

\V. H. CHURCHMAN.

WVitnesses:

GEO. W. HOLLINGSWORTH, J. O. MERTEN. 

